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<h1>lua-cassandra</h1>

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<h2>Examples</h2>
<ul class="nowrap">
  <li><strong>authentication.lua</strong></li>
  <li><a href="../examples/batch.lua.html">batch.lua</a></li>
  <li><a href="../examples/intro.lua.html">intro.lua</a></li>
  <li><a href="../examples/pagination.lua.html">pagination.lua</a></li>
  <li><a href="../examples/ssl.lua.html">ssl.lua</a></li>
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<h2>Modules</h2>
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  <li><a href="../modules/cassandra.html">cassandra</a></li>
  <li><a href="../modules/resty.cassandra.cluster.html">resty.cassandra.cluster</a></li>
  <li><a href="../modules/resty.cassandra.policies.lb.dc_rr.html">resty.cassandra.policies.lb.dc_rr</a></li>
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  <li><a href="../modules/resty.cassandra.policies.reconnection.const.html">resty.cassandra.policies.reconnection.const</a></li>
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  <li><a href="../modules/resty.cassandra.policies.retry.simple.html">resty.cassandra.policies.retry.simple</a></li>
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    <h2>authentication.lua</h2>
<pre>
<span class="comment">--------------------------------
</span><span class="comment">-- Single host module, plain Lua
</span><span class="comment">--------------------------------
</span>
<span class="keyword">local</span> cassandra = <span class="global">require</span> <span class="string">"cassandra"</span>

<span class="keyword">local</span> peer = <span class="global">assert</span>(cassandra.new {
  auth = cassandra.auth_providers.plain_text(<span class="string">"cassandra"</span>, <span class="string">"cassandra"</span>)
})

<span class="global">assert</span>(peer:connect())

<span class="comment">----------------------------
</span><span class="comment">-- Cluster module, OpenResty
</span><span class="comment">----------------------------
</span>
http {
  # shm storing cluster information
  lua_shared_dict cassandra <span class="number">1</span>m;

  server {
    ...

    location / {
      content_by_lua_block {
        <span class="keyword">local</span> cassandra = <span class="global">require</span> <span class="string">"cassandra"</span>
        <span class="keyword">local</span> Cluster = <span class="global">require</span> <span class="string">"resty.cassandra.cluster"</span>

        <span class="keyword">local</span> cluster, err = Cluster.new {
          auth = cassandra.auth_providers.plain_text(<span class="string">"cassandra"</span>, <span class="string">"cassandra"</span>)
        }
        <span class="keyword">if</span> <span class="keyword">not</span> cluster <span class="keyword">then</span>
          ngx.log(ngx.ERR, <span class="string">"could not create cluster: "</span>, err)
          ngx.exit(<span class="number">500</span>)
        <span class="keyword">end</span>
      }
    }
  }
}</pre>


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